Machine for ironing and finishing paraffined containers.



C. w. SHEVLIN. MACHINE FOR IRONING AND FINISHING PARAFFINED CONTAINERS.

APPLIC'ATIN FILED MAR. 30. |914.

Patented May 8, 191?.

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C. W. SHEVLIN.

MACHIN FOR IRONING AND FINISHING PARAFFANED CONTAINERS.

APPLICATION FILED MAR. 30. 19M.

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C. W. SHEVLIN. MACHINE FOR [RONING AND FINISHING PARAFFINED CONTAINERS.

APPLICATION FILED MAR. 30 |914.

Y Patented May 8, 1917.

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UNITED CTATE@ PATENT CFFIQF.

CHARLES W. SHE'VLIN, OF CHICAGO, ILLINOIS, ASSIGNOR TO CLIMAX CONTAINERCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

MACHINE FOR IRONING AND FINISHING PARAFFINED CONTAINERS.

Specification of Letters Patent.

Patented May 8, 1917.

Application filed March 30, 1914. Serial No. 828,212.

To cav/ZZ whom t may concern:

Be it known that I, CHAnLns W. Sunvmn, a citizen of the United States,residing at Chicago, in the county of Cool; and State of Illinois, haveinvented certain new and useful Improvements in Machines for Ironing andFinishing Paraifined Containers, of which the following is aspecification.

This invention relates to machines for ironing strawboard cans andcylindrical receptacles. The object of this invention is to construct amachine of this character that is simple in construction, easy tomanipulate, and etlicient in its operation. Another object is to providea machine that will, by its manipulation and treatment of the can,effectively unite the tissues that have been previously paraiiined andwound together, so that when the can is finished it will be capable ofretaining liquids and oily substances and successfully 'prevent the sameseeping through any portion thereof. Still another object is to providemeans that will be capable of moving' the receptacle slightly lwhile itis still in Contact with the heated mandrel for the purpose of ironingthe interior surface thereof and producing a smooth surface andeffecting the adhering together of the parts of said receptacle.

These and other objects are'accomplished by the means and in the mannerhereinafter fully described and as more particularly pointed out in theclaims, reference being had to the accompanying drawings forming a parthereof, in which- Figure 1 is a vertical front elevation partly insection of my improved paraffin can linishing machine;

Fig. 2 is a top plan view thereof having the top-plate of the tableremoved to disclose certain 'elements below the same;

Fig. 3 is a vertical transverse section taken on line 3 3, Fig. 2;

Fig. et is a fragmentary plan View similar to Fig. 2, showing in dottedandl full lines two relative movements of the segments of the ironingmandrel and their actuating mechanism;

Fig. 5 is a fragmentary view showing two relative positions of themechanism for im and finishing paraffined paper or parting the necessarymovement to iron the receptacle or can;

F ig. G is a detached detail view of one of the heated segments of theironing mandrel.

Referring to the drawings, it will be observed my improved mechanism issupported upon a table or bench comprising suitable side frames orstandards A, preferably of cast metal or the like, having upper lateraliianges 0 to which the bed-plate B is securely bolted. Journaled insuitable alining bearings adjacent one of the vertical edges of eachside frame is the master or driveshalt C, that is preferably disposed ina substantially horizontal plane just below the bedlate.

The central portion of the bed-plate is preferably cut out to form acircular opening 1 therein and a suitable open or skeleton bearing frame2 is securely boltedV to the under face of the bed-plate in such mannerthat it bridges said opening. Rotatably se cured to frame 2 by means ofa shouldered smootlrbarreled bolt 3 is a suitable rotary reciprocablespider a that derivesits motion from a horizontally disposed arm 5secured to and projecting laterally from the under side of said spider.The outer end of this arm extends to and is preferably engaged by alateral pin 6 on the upper edge of an automatically reciprocable bolt orplunger 7, which latter has its aXis substantially parallel to the axisof the master shaft and is provided with a squared portion mounted inalining bearing lugs 8, 8, bolted to the under surface ofthe bedwplateand has a circular barrel portion that slides in a bearing 9, alsopendent from the under side of the bed. Bolt 7 is preferably kept pushedtoward one end of its movement by means of a coiled expansion spring1()` disposed around the circular portion of the same between saidbearing 9 and asuitable adjustable collar 11 mounted on said boltsubstantially as shown in Fig. l of the drawings. The opposite endvofsaid boltis preferably bifurcated as shown at 12, and has a suitableroller 13 journaled between the par- 'allel arms thereof. Said rollerrides upon the edge of a face cam 14 mounted on the adjacent portion ofthe master-shaft C and .Y so

from which said bolt derives its reciprocal movement and through themedirun of said arm 5 rocks the spider.

The rotary reciprocable spider 1l, hereinbefore mentioned, hreferablycomprises three cquidistant arms that radiate from the central bossthereof and at their outer ends said arms are each pivotally connectedby suitable horizontally disposed links 15, 15, to the shorter ends of.levers 1G, 16, that are pivoted mediate their ends to the under face ofthe bed of thetable. The ends of levers 16 opposite links 15 areconnected to the lower ends of vertically disposed studs 17 by means ofsuitable clamp nuts that are screwed onto the lower screw-threaded endsof said studs. Said studs pass through suitable radially elongated slots17a, 17, and 20M-20% cut respectively into the bed-plate B and theguides' 20-20 hereinafter mentioned to ac commodate the same, and boththe upper and the lower ends of said studs are preferably reduced indiameter to form suitable shoulders (as shown in Fig. 3) that are stillfurther reduced beyond said shoulders to form screw-threaded extensions.The reduced portion of the lower ends of the studs are inserted inlongitudinally elongated slots 18, 18, in the adjacent ends of levers1G, while the reduced upper portions of said studs pass through and aresecured to the horizontally disposed guide shoes or plates 19, 19, ofthe mandrel to be hereinafter fully described. Secured in any suitablemanner to the top of the bedplate are several (prefs erably three)radially disposed guides 20, 20, that are substantially U-shaped intransverse section, having the longitudinal edges of the parallelmembers slightly undercut as shown in Fig. 1, so as to guide the shoes19 and guard against their accidental removal therefrom. These shoes aresubstantially flat, rectangular-shaped plates having their longitudinalside edges beveled slightly to fit the undercut of the guides.Alternating between the guides above mentioned are an additional set ofradial guides 20, 20, constructed in a manner similar to guides il) andin which are mounted suitable shoes 19, 19a, that are likewise similarin construction to shoes 19 hereinbefore mentioned. Shoes 19a, however,are lrept pushed toward the inner limit of their movement by means ofsuitable longitudinallydisposed spindles :21, 21, secured to andprojecting outwardly from the outer edges of said shoes, and which havetheir outer portions slidably journaled in substantially L-shapedbearing lugs 22, Q2, secured to and projecting from the bed B of thetable. Coiled expansion springs 23, 23, surround said spindles betweenthe inner faces of said lugs and the outer edges of said shoes so as toforce the latter inwardly in their respective guides as will beunderstood. These two sets of shoes afford a suitable means for mountingthe mandrel of the machine, which is preferably arranged as follows:Suitable vertically-disposed hollow members 2e, 24e, are mounted uponand carried by the inner ends of shoes 76, 19, said members beingsegmental shaped in horizontal section, the arc of the same being struckfrom the pivotal center of the spider above described and the vertical.end walls thereof converging toward each other at an obtuse angle asshown at 21a in Figs.

2 and 4t of the drawings. Disposed .between the hollow segmental mandrelmembers and preferably in contact with the angular end walls 24 thereofare suitable vertically dis- 3@ posed wedge members 25, 25, that aremounted upon and arise from the inner end edges of the shoes 19. Saidwedge members are preferably solid and the faces thereof that contactwith the adjacent angular faces g5 of the hollow members preferablyconverge outwardly as shown, so as to present the fiat surface thereofto the same. The outer surfaces of the wedge members are profe 1ablysegmental shaped so that when the wedges 9g and mandrel members are inthe position shown in Fig. 2 of the drawing the outer circumference ofall of said parts will form a continuous curved surface.

Under normal conditions the positionsof the segmental members of themandrel are substantially as illustrated in Fig. e, with the wedges andthe segmental sections at the limit of their inward movement. In thisposition the paper tube, can, or other receptacle having been previouslyformed by rolling parailin-impregnated tissue is dropped over themandrel. The revolving cam 111, by reciprocating the plunger '7, swingsarm 5 and rotates the spider 4, which latter transmits its motionthrough links 15 to levers 16 and forces the shoes 19 to move in an out-bers hot enough to melt the paraiiin on the receptacle and cause theseveral layers of tissue to unite and knit or seal them firmly together.

In orderV to iinish the receptacle with a smooth interior surface it hasbeen found expedient to iron or move the same slightly upon the mandrelin either a rotary or a vertical direction. I prefer, however,

to iron the receptacle by raising it vertically upon the mandrel andejecting it at the same time, thus eliminating an operation and savingtime. Surrounding the hollow segmental mandrel members is acorresponding number o-f horizontally disposed ring segments 30, 30,that rest upon the upper surface of the guides 20 and 20a as shown.These ring segments have horizontal motion and they are adapted to beraised vertically parallel to the sides of the mandrel by the verticalreciprocation of vertically disposed rods 31, 31, that pass throughopenings in the guides and table and have their lower ends mounted insuitable holders 32, carried on the ends of brackets 33 radiating from acentral boss 34. Said boss 34 is secured to and carried by the upper'end of a vertically disposed, longitudinally reciprocal plunger 35 thathas bearings 36, 36a, in the upper and lower angles of a diamond shapedframe 37 having its opposite corners mounted upon suitable lugs orshoulders 38 projecting inwardly from the adjacent portion of the sideframes A.

I prefer to employ the following means in order to give the plunger 35the proper reciprocationz-A suitable eccentric cam 39 is mounted on theend of shaft C (opposite cam 14) and engaging the same is anantifriction roller 40 that is journaled on the upper bifurcated end ofa second-class lever 4l fulcrumed in a lateral embossment A of the sideframe. A horizontally disposed rock-shaft 42 is j ournaled in saidside-frame just below the horizontal plane of the lower end of saidlever and said shaft carries a long and a short arm 43 and 44respectively. The shorter arm 44 is connected by a link 45 to the lowerend of lever 4l while the longer arm is provided with a longitudinallyelongated bearing slot 43a in which the spindle of an anti-frictionroller 46 is mounted. Journaled in bearing brackets 47 secured to theouter surface of the sideframe is a horizontally' disposed rock shaft47a which mediate its endsv carries a substantially horizontallydisposed lever 48 that rests mediate its ends upon and is actuated bythe roller 46 and has its opposite bifurcated end provided with slots4SEL through which a horizontal pin antapped into the adjacent end ofplunger 35, is adapted to pass. Thus it will be seen that the operationof cam 39 moves leverv41 and the latter through its link 45 rocks shaft42 on which arm 43 is secured. This causes the lever 48 to be raised andit in turn elevates` plunger 35 in its bearings so that the segments ofthe ring 30 will be raise'd by their respective rods sufficiently toeject the can or receptacle off the upper end of the mandrel. As beforementioned, this raising of the receptacle while upon the heated mandrelis suiiicient to iron the interior surface of the cam and finish thesame smoothly as well as cause the removal of the finished article.

In order. to suitably adjust the relative movement of lever 48 and theresulting elevation of the ring segments 30 I prefer to lock the spindleof roller 46 in various adjusted positions in slot 43a by means of alock-nut 49 screwed on the extended screwthreaded end of said spindle.

What I claim as new and desire to secure by Letters Patent is:

l. In a device of the kind speciiied, a sectional mandrel upon which ahollow receptacle is adapted to be retained, means for expanding saidmandrel into contact with said receptacle, and a device substantiallysurrounding said mandrel for moving said receptacle with respect to saidmandrel while the latter is in contact therewith and expanded.

2. A device of the kind specified, Comprising an expansible mandrel uponwhich a hollow receptacle is adapted to be retained, means for expandingand contracting said mandrel into and out of contact with said hollowreceptacle, and an ejector comprising a plurality of segmental platessurrounding said mandrel and against which said mandrel is expanded,said ejector adapted to be operated while said mandrel is in an expandedposition.

3. A device of the kind specified, comprising a mandrel upon which ahollow receptacle is adapted to be retained, consisting of a pluralityof segmental sections, a

plurality of wedge membersinterposed between said segmental sections, acorresponding number of radially disposed reciprocable carriers uponwhich said segmental sections and wedge members are respec-v tivelymounted, and devices for forcing said wedge members against saidsegmental sections to expand said mandrel into contact with said hollowreceptacle.

4. A devicerof the kind specified, comprising a mandrel upon which ahollow receptacle is adapted to be retained, consisting of a plurailtyof returnable segmental sections, a plurality-of wedge members inter-`posed between said segmental sections, a corresponding number of`radially disposed reciprocable carriers upon which said segmentalsections and wedge members are respectively mounted, and devices forforcing said wedge members against said segmental sections to expandsaid mandrel into contact with the walls of said receptacle.

5. A device of the kind specified, comprising a mandrel upon which ahollow receptacle is adapted to be retained, consisting of a pluralityof segmental sections, a plurality of wedge members interposed betweensaid segmental sections, a corresponding number' of radiallyreciprocable carriers upon which said segmental sections and wedgemembers are mounted, devices for forcing said wedge members against saidsegmental sections to expand saidmandrel, and means for automaticallyreturning said segmental sections to normal position.

G. A device of the kind specified, comprising a suitable support, acontractible sectional mandrel mounted thereon, and means for expandingsaid mandrel comprising a plurality oit' wedges engaging the sectionsthereof, shoes upon which said wedges are carried, levers each havingone end engaging one of said shoes, a rotary reciprocable spider towhich the opposite ends of said levers are connected, and meansimparting motion to said spider.

7. A device oli' the kind specified, comprising a suitable support, amandrel mounted thereon upon which a hollow receptacle is adapted to beretained, means for moving the receptacle with relation to said mandrelcomprising a plurality of ring segments surrounding said mandrel, aplurality of vertically reciprocable plungers upon which each one ofsaid ring segments is separately mounted, and devices for reciprocatingsaid plunger-s.

8. A device of the kind specified, comprising a suitable support, amandrel mounted thereon that is capable of expansion and contraction,means for moving the article operated upon by the mandrel that comprisesa plurality of ring segments surrounding said mandrel, verticallyreciprocable plungers on which said ring segments are mounted, devicesfor reciprocating said plungers, a frame below and in axial alinementwith the axis of said mandrel to which the, lower ends of said plungersare connected, a reciprocable shaft upon which said frame is carried,and devices for reciprocating said shaft. l

9. A device of the kind specified, comprising a suitable support, amandrel mounted thereon that is capable of expansion and contraction,means for moving the article operated upon by the mandrel that comprisesa plurality of ring segments sur rounding said mandrel, verticallyreciprocable plungers on which said .ring segments are mounted, devicesfor reciprocating said plungers, and means for adjusting the movement ofsaid plunger-s.

l0. In a device of the kind specified, a sectional heated mandrel overwhich a hollow receptacle is adapted to be mounted, means for expandingsaid mandrel into contact with said receptacle, and devices for movingthe receptacle with respect to said mandrel while the latter is in itsexpanded position and frictionally contacting the Walls of thereceptacle.

1l. A forming member, means for expanding said member and causing thesame to engage an article and shape it to conform toA the formingmember, and means for causing a movement between the article and themember while the latter is expanded and. in engagement with the article.

l2. A forming member, means for expanding' said member and causing thesame to engage an article and shape it to conform to the forming member,a means for causing the movement of the article while in engagement withsaid member and while the latter is expanded.

13. An ironing machine comprising a heated holding mandrel, means forexpanding said mandrel and causing the same to engage an article to beironed, and means for causing a relative movement between the articleand mandrel while the latter remains expanded and in frictionalengagement with the former.

CHARLES WV. SHEVLIN. Witnesses:

WVM. F. VVnrrcoMn, E. K. LUNDY.

Copies of this patent may be obtained for live cents each, by addressingthe Commissioner of Patents,

' Washington, D. C.

